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It is reported for the first time that the phosphonic acid terminated self-assembled layers assembled on a gold surface could be used as a functional interface to sensitively and selectively detect dopamine (DA) in the presence of highly concentrated ascorbic acid (AA). X-ray photoelectron spectroscopic (XPS) and reductive desorption measurements proved that the 3-mercaptopropylphosphonic acid [HS-(CH...
A sensitive and selective electrochemical method for the determination of dopamine was developed using a p-nitrobenzenazo resorcinol (NBAR) polymer film modified glassy carbon electrode (GCE). The NBAR polymer film modified electrode shows excellent electrocatalytic activity toward the oxidation of dopamine (DA) in a phosphate buffer solution (pH 4.0). The linear range of 5.0×10 −6 to 2.5×10...
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